A word from Stacy, the 'Monsters Inc. Boo' costume creator:

Pictured is my daughter wearing our version of Boo, from monsters inc. This is a homemade costume made from a sweater we found at a consignment sale. I cut the sleeves and hemmed them to make a vest. I cut up an old tshirt and braided the shreds to make the hair. Used fabric to rim the hood to make the "mouth and teeth" and the eyes. Used glitter paper to stand the eyes up with a straw to help in keeping it up right.